Getting a kitten for my resident cat broke our relationship
History of resident kitty: Arrived to us as an adult. He adjusted well, he's now almost 6 years old and has been with us for a few years. He used to be my soul cat! An absolute cuddlebug who loved brushing and pets, to the point of drooling in stranger's laps if they brushed him.
He seemed needy and a bit lonely so we got him a kitten friend 10 months ago. Slowly introduced them and they love each other. They play together, groom each other and sleep together. Resident kitty seems ten times happier and more satisfied now but at the cost of disintegrating the bond I had with him. He now actively dislikes me and it's been this way for 10 months.
The behavior started the second the new cat arrived but we thought he was just getting used to the change so we didn't think much of it. He didn't want anything to with us unless it involved food, he didn't even want to play with us. We gave him space and slowly he came around a bit but only to my husband. He's still more aloof to him than he was before but still does go to his lap, purrs etc. With me he doesn't purr, doesn't want to be touched or be anywhere near me.
Only difference I can think of is that husband has given less attention to the new cat than me because he's away a lot and I'm home all the time. I think maybe resident cat is territorial or something over us. He does this dominating behavior where he'll bite the kitten in the neck sometimes and it's always in a situation where for example the new cat comes to greet me at the door when I come home.
But we're in an impossible situation. I can't give our resident kitty more attention than the new cat since he doesn't like me where as the new cat loves me and always wants to be with me. I tried stuff like greeting the resident kitty first at the door but I can't pet him or even talk to him, he just backs away if I do. Since he doesn't like me touching him, I tried to limit all our interactions to me just giving him treats or high-value food multiple times every single day. I tried that for months and the end result was he tolerates my presence if he gets to eat, after that he still wants nothing to do with me.
I'm going to take care of him just the same if he never comes around. But I still find myself wishing there's something I could do to make him like me, even just a little bit. The difference is so drastic. It's not just "I now have a new best buddy so I don't need humans as much", it's "I might tolerate your presence if you give me food". It's even making stuff like clipping his nails and brushing (which he needs as a long-haired boy) dreadful since I have to do those things but he hates me being that close. We're now in a state where he just sees me cuddling, brushing and petting the new cat all day long because he wants none of that from me. Maybe he doesn't care, but if his behavior has something to with jealousy, I have no idea what to do. Is it possible to bond with him ever again? It's probably not adjustment period anymore if it's been almost a year?